Option 1 -> Part III deals with Fundamental Rights (Articles 12-35), which are justiciable rights of citizens.
Option 2 -> Part XV deals with Elections (Articles 324-329), covering the election machinery and processes.
Option 3 -> Part V deals with The Union (Articles 52-151), covering the executive, parliament, and judiciary at the central level.
Option 4 -> Part IV deals with Directive Principles of State Policy (Articles 36-51), which are non-justiciable guidelines for governance.
Hence, Part IV -> The Directive Principles of State Policy are enshrined in Part IV of the Indian Constitution, serving as fundamental guidelines for the state in policy-making and governance, though they are not enforceable by courts -> correct